APA

Puerto Rico, . (1972). Water quality measurement at the swimming pool (piscina alumni) at the Mayaguez Campus of the University of Puerto Rico. Mayaguez,Puerto Rico: Water Resources Research Institute.

Chicago

Puerto Rico, . 1972. Water quality measurement at the swimming pool (piscina alumni) at the Mayaguez Campus of the University of Puerto Rico. Mayaguez,Puerto Rico: Water Resources Research Institute.

Harvard

Puerto Rico, . (1972). Water quality measurement at the swimming pool (piscina alumni) at the Mayaguez Campus of the University of Puerto Rico. Mayaguez,Puerto Rico: Water Resources Research Institute.

MLA

Puerto Rico, . Water quality measurement at the swimming pool (piscina alumni) at the Mayaguez Campus of the University of Puerto Rico. Mayaguez,Puerto Rico: Water Resources Research Institute. 1972.